Machinery for the manufacture of laid cords and ropes.



1. GILL.

MACHINERY. FOR THE MANUFACTURE OF LAID CORDS AND ROPES.

APPLXCATION FILED our. 29. 1915.

,1 269.533. Patented June 11, 1918.

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I. GILL. MACHINERYIOR THE MANUFACTURE OF LAID CORDS AND aoPcs. I APPLICATION FILED OCT- 29, I9I5- 7 1,269,533, Patented June 11,1918.

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UNITED srnrns PAT NT cur os.

JOSEPH GILL, or SUMMER BRIDGE, nacnn, ENGLAND.

MACHINERY FOR THE MANUFACTURE OF LAID CORDS AND ROPES.

To all whom it may concern:

' Be it known that I, JOSEPH GILL, citizen of Summer Bridge, residing at Nydd View, Summer Bridge, Dacre, in the county of York, England, subject of George V, King of Great Britain and Ireland, have invented certain new and useful Improvements in Machinery for the Manufacture of Laid Cords and Ropes, of which the following is a specification.

This invention relates to machinery for the manufacture of laid cords, twine, ropes and the like: all hereinafter for the sake of brevity, referred to as cords; and its object is to simplify and cheapen the construction of such machinery and at the same time to increase the rate of production, and to obtain a more perfect product.

A machine constructed according to this invention comprises; the usual back spindles on which the yarn strand or thread bobbins are mounted. (For the sake of brevity these will hereinafter be referred toas simply bobbins.) Also the usual flier spindles and bobbins on which the formed rope or cord is wound. Each strand is separately twisted by its back spindle, and the. strands are twisted together to form the rope by the flier spindle in the usual manner.

Now according to this invention, each strand as it leaves the strand bobbin passes through a tension device, which is rotated with or by its back spindle, and passes then to a reciprocated grooved or fluted cone piece, usually termed the top the number of grooves corresponding with the number of strands. The top which is not rotatable, serves to bring the strands together. Any other convenient device for bringing, the strands together may be used. vEach strand is thus twisted between the to-p? and the above mentionedtension device car-' ried byor rotated with the strand bobbin spindle. The strands which are brought together at the apex of the top, pass together through a reciprocated gr pping device situated close to the apex of the top. 7

The gripping device and the top are both most conveniently mounted on a common sliding piece carried in suitableguides, and the sliding piece is reciprocated, from a crank or cam on a driving shaft, through levers and connecting rods suitably arranged. V I

. The gripping device is situated in such Specification of Letters Patent. Patented J 11113 11, 1918. Application filed October 29, 1915. Serial No. 58,588.

flier onto the flier bobbin. The grlppers are openedat the commence-- ment of the reverse movement of the sliding piece, during which movement the top brings a corresponding length of the strands together. The twisting of the se arate yarns or strands and the twisting 0 these together to form the rope or cord thus takes place continuously and simultaneously.

Although I do not wish to limit myself to any particular construction of the mechan1sm above referred to, I have found the following to answer well:

The gripping device is formed of a pair of serrated jaws, one or both of which aremade movable. The connecting rod or'link, which draws forward and pushes back the sliding piece, is not connected directly to the sliding piece, but to the movablefjaw or jaws, in such a manner, that at the reversal of the movement of the connecting rod at the back end of its stroke, it first closes the gripping device, before'any move ment of the sliding piece can take place; and similarly at the forward end of its stroke, the connecting rod first pulls the gripping device open before any movement of the sliding piece can take place. I

In order to insure the proper gripping of the cord before the forward movement'of the sliding piece commences, an adjustable tenthe sliding piece.

It will be evident, that as the strands are passing through the slots or slits in the top, during the return or backward stroke, the top brings the same length of the strands together. V r

The tension device for putting a suitable strain on the strands may consist of a pair of blocks, with sinuous faces dovetailing into one another, and across which the strand is led. The pair of blocks are pressed together by springs, the pressure of which can be adjusted by screws and nuts. The "blocks and springs are carried in a' frame co-axial with and driven from the back spindle, and the strand passes through the top journal of the frame which is made hollow for the purpose.

And in order that my invention'and the manner in which the same is to be performed may be more readily and clearly understood, 1 have annexed hereto the accompanying sheets of drawings of the parts of a machine for the n'ianufacture of laid cords'constructed according to this invention.

Figure 1 is a side elevation and Fig. 2 is a plan.

Fig. 3 is an elevation to a larger scale of the yarn or strand tension device shown in Fig. 1.

Fig. l is a side elevation, and Fig. 5 is a cross elevation of the reciprocated gripping device and the slide bar carrying the same and of one of the tension devices acting on the slide bar.

In all the figures, the same reference letter refers to the same or corresponding part or parts.

(2 indicates part of the frame-work of the machine.

Z) are the separate strands, led from the strand bobbins 0 through the tension devices hereinafter described and best illustrated in Fig. 8, which are carried by the frames of the corresponding bobbins c and back spindles (Z carrying fliers (Z said tension devices being rotated with said spindles.

As shown in Fig. 3, the tension device consists of a pair of tension or tightening bars 6, provided with semi-circular or sinuous faces, between which the strand passes. One of the bars is fixed to the frame f, and the other movable under the pressure of springs g; the compression being adjustable by means of the screw h.

My invention however is not limited to this construction of tension device.

Each strand on leaving the tension device T passes up through a trumpet guide (Z and thence horizontally to the top hereinafter described.

As shown, three strands Z) are united to form each laid cord j, the strands pass from the said guiding trumpets of the back spindles (Z to guiding devices preferably consisting of the fluted cone pieces in, or tops, as they are usually termed. Each top is attached to a reciprocated, slide bar Z as hereinafter set forth. In passing from the strand bobbin to the top, each strand is twisted, and the three strands to form the cord are brought together by the top. The joined strands then pass between the jaws m and 0 of the gripping device.

The jaw m, whichforms part of the jaw box m is fixed to the upper side of the reciprocated slide bar Z, while they other jaw 0 is hinged. A short lever 39 is formed integral with the hinged jaw 0, and its end is connected by the connecting rod Q with a lever r, fixed on a rock shaft 8.

The shaft 8 is rocked from the driving shaft 25 by mean of thelever u, connecting rod o and crank disk '11; on the end of shaft 25. In order to be able to time and adjust the stroke of the slide bar Z, the driving shaft t is driven from some convenient moving part of the machine by change gear wheels, part of which only are shown at m,- and the levers r and u to which the ends of the connecting rods 9 and o are attached are formed with slots as shown.

The slide bar Z is subjected to the pressure of springs y, y, see Figs. 1, l and 5, the pressure being adjustable by means of nuts 2 on the screwed upper ends of the studs Z; the lower ends of the studs being screwed or bolted to the cross frame pieces a, supporting the slide bars Z.

This pressure creates a frictional resistance to the movement of the slide bar in both directions, so that the forward movements, (see the arrow in Fig. 1), of the slide bar cannot commence until the pull of the connecting rod q draws the hinged jaw 0, down against the fixed jaw m, nipping the joined strands between. them; so that when the slide bar moves forward, the strands are drawn forward at the same time. Also it will be evident, that the return or backward movement of the slide bar cannot commence until the push of the connecting rod 1 opens the hinged aw 0, releasing the strands, so that they do not partake of the return movement, but the top brings the strands together for the length of this movement.

I mount at the end of the main frame athe flier spindles 3 and the bobbin 2 and fliers l, these parts being broken away in Fig. 1 so that only the upper part of the bobbin and the upper part of the flier appear. There is no novelty in the construction and operation of these parts, so they have been shown diagrammatically rather than elaborately illustrated in all details.

It will be evident that, the manner in which thelaid cord is formed by a machine constructed according to this invention is similar to that effected in a rope walk, except that instead of the strands being pulled out at once the full length of the walk, this is eifected by a succession of intermittent short pulls alternate with the joining action of the top; whereby greater uniformity and regularity in the manufactured cord are obtained. Also the adjustable tension devices and the means for adjusting and timing the strokes of the reciprocated slide piece enable the different operations to be effected in the most efficient manner for the production of laid cords having any desired qualities or character.

Having now particularly described and ascertained the nature of my said invention,

I and in what manner the same is to be performed, I declare that what I claim is 1. A cord-making and rope-making machine, in combination with a plurality of rotating bobbins, each supplying a thread, a guiding device through which these threads are directed collectively, a gripping device for the laid cord issuing through said guiding device, means for automatically reciprocating said guiding device and gripping device and for closing and opening said gripping device at the beginning of its forward movement and of its rearward movement respectively, and rotating twisting and take-up elements for twisting the threads together and taking up the united cord.

2. In acord-making machine, in combination with a plurality of rotating bobbins, each supplying a thread, a guiding device through which these threads are directed collectively, a gripping device for the laid cord issuing through said guiding device, means for automatically reciprocating said guiding device and gripping device and for closing and opening said gripping device at the beginning of its forward movement and of its rearward movement respectively, and rotating flier spindles and bobbins for twisting the threads together and taking up the united cord.

3. In a cord-making and rope-making machine, in combination with a plurality of bobbins, each supplying a thread, tension devices turning with each of said bobbins and acting on each of said threads respectively, a guiding device through which these threads pass collectively, a gripping device receiving the laid cord from said guiding device, a slide carrying said guiding device and gripping device, means for automatically reciprocating said slide and closing and opening said gripping device at the beginning of its forward and its rearward movement respectively, and rotating flier spindles and bobbins for twisting the threads together and taking up the united cord.

4. In a cord-making or rope-making machine, in combination with a plurality of bobbins, each supplying a thread, and tension devices therefor, a guidingdevice through which the threads pass collectively,

forming one cord, a gripping device for the 5. In a cord-making or rope-making ma-.

chine, in combination with a plurality of bobbins, each supplying a thread, a guiding device through which these threads pass collectively, forming one cord, a gripping device which receives the laid cord from said guidlng devlce, a sl1de on whlch sald guidmg devlce and gripping device are mounted,

means for reciprocating said slide and forclosing and opening said gripping devices at the beginning of said forward movement and said rearward movement respectively, frictional devices resisting the movement of said slide and rotating flier spindles and bobbins for twisting the threads together and taking up the united cord.

6. In a cord-making or rope-making machine, a plurality of bobbins, each supplying a thread, a guiding device through which said threads pass collectively as one cord, a gripping device for this laid cord comprising a fixed jaw and a movable jaw, a slide on which said guiding device and gripping device are mounted, connections from said movable jaw to an'operative part of the machine whereby said slide is reciprocated and said gripping device is closed and opened, and rotating flier spindles and bobbins for twisting the threads together and taking up the united cord.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH GILL.

Witnesses:

G. A. F EARNSIDE, HAROLD F. JEFFERSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

